Cisco XR 12000 Series User Manual download pdf (Page 40)

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Cisco XR 12000 Series Router SIP and SPA Hardware Installation Guide

OL-17438-04

Chapter 2 Overview: Cisco XR 12000 Series Router Shared Port Adapters

8-Port Channelized T1/E1 SPA Overview

8-Port Channelized T1/E1 SPA Interface Specifications

The E1 interface on the 8-Port Channelized T1/E1 SPA uses RJ-48c receptacles for E1 (120-Ohm) cables

with RJ-45 connectors. You can use all ports simultaneously. Each E1 connection supports interfaces that

meet G.703 standards. The RJ-45 connection does not require an external transceiver. The E1 ports are

E1 interfaces that use 120-ohm shielded twisted pair (STP) cables.

Warning

Shielded twisted pair (STP) T1/E1 cables must be used to comply with EN55022/CISPR22 Class A

emissions requirements. For revisions 73-8358-05 through 73-8358-08 Shielded Twisted pair (STP)

T1/E1 cables must be used to comply with FCC Class A emissions requirements.

8-Port Channelized T1/E1 SPA Cables, Connectors, and Pinouts

Figure 2-4 shows an RJ-45 connector.

Note The terms RJ-45 and RJ-48c are sometimes used interchangeably. The RJ-48c is the jack or receptacle;

the RJ-45 is the connector.

Figure 2-4 RJ-45 Connector

Ta bl e 2-7 8-Port Channelized T1/E1 SPA LEDs

LED Label Color State Meaning

C/A Off Off Port is not enabled by software.

Green On Port is enabled by software, and there is a valid T1 or E1

signal without any alarms.

Amber On Port is enabled by software, and there is at least one alarm.

A/L Off Off Port is not enabled by software.

Green On Port is enabled by software, loopback is off.

Amber On Port is enabled by software, loopback is on.

STATUS Off Off SPA power is off.

Amber On SPA power is on and good, and SPA is being configured.

Green On SPA is ready and operational.

32770

RJ-45

RJ-48c

Pin 1

Pin 8

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Cisco XR 12000 Series User Manual Page 40